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January 2, 2026 Service bulletin

Engine replacements for all International engines will need to follow this procedure.

Workhorse technical service bulletin IK2600047 for 2011 Workhorse W22, 2013 Holiday Rambler Endeavor and 2013 Holiday Rambler Ambassador and others.

Bulletin number
IK2600047
Component
Engine
Summary
Engine replacements for all International engines will need to follow this procedure.

Owners of these vehicles have filed 75 complaints in the engine category.

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